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Secondary 1 | Maths
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hi i need help with this
Date Posted: 4 years ago
Views: 219
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I'm primary 4. And it might be wrong so is like a timeline draw it and adding like 6.30 + 4.18 but ik the teacher say cannot do like that so when you draw the timeline you get the answer and then that's the answer the answer minus 10 is 4.08 so
You can do... but must be careful on hour and minutes....because your teacher worry question like 3.55pm + 4 h 45 min.... you do this way 3.55 + 4.45 = 8.00 this is wrong. Cause time, 1 hour is 60min
P4 draw timeline is better solution to avoid mistakes.
P4 draw timeline is better solution to avoid mistakes.
c) Distance =354
Time = 4h 8min = 62/15 h or 4.1333333 h
Average speed = 354/4.1333333
= 85.64516129
= 85.6 km/h (3sf)
Hope this helps
Time = 4h 8min = 62/15 h or 4.1333333 h
Average speed = 354/4.1333333
= 85.64516129
= 85.6 km/h (3sf)
Hope this helps
Time cannot use add minus I think is correct so time line them cauculate like minus 5.30 - 4.08 the answer is 1.22pm and the last one I don't know.
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